Finger-ring.



J. GRAFSTEIN.

FINGER RING. APPLICATION man JUNE 14. 19:6.

13$$863 Patented June 5, 1917.

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JOSEF'GRAFSTEIN;V O1E new YORK, N. Y., ASSIGNOR ro-couzroinrinwnnnx conronA TIONS'INQ', orivnwYonx, N. Y., A coarona'rronorxnnwYORK.

Fillil'GEB -RING.

Specification of Letters Yatent.

Patent edJune 5; 191 7.

Application filed Junel l, 1916. Serial No. 103,685.

ring composed of two complete circles or.

annular bands, each furnished with a fiat inner face and carrying one half of the collet or gem setting. The two halves are soldered face-wise together thus forming the complete ring while the two collet halves become simultaneously fixed opposite each other to form a continuous collet. By my invention, the cuttle bone molds heretofore generally employedfor making finger rings, are entirely dispensed with, the construction of the ring is greatly simplified and waste of precious metal is avoided.

In the accompanying drawing:

Figure 1 is a face view of a metal plate;

Fig. 2, a face view of the blank stamped therefrom;

Fig. 3, a section on line 3-3 Fig. 2;

Fig. 4:, a section through the two ring halves, after being shaped, and before being united;

Fig. 5, a similar section showing such halves united;

Fig. 6, a perspective view of the ring complete;

Fig. 7 a cross section through part of the dies;

Fig. 8, a similar cross section showing the parts in a different position;

Fig. 9, a side view of a ring half showing a modification of the invention;

Fig. 10 a section through the two ring halves before assemblage, and

Fig. 11, a perspective view of the mug complete.

Referring more particularly to Figs. 1-8, the ring is composed of two halves 12, 12, each forming a complete circlet, the two halves being equal in every particular. The cross section of each ring half corresponds to the cross section of the ring to be constructed, taken in planes extending diametrically across the ring. In this way, each half will be furnished with a rounded outer face 13, representing the contour of the ring moiety and with-a flat-inner face 14. Furthermore, each ring moiety carries one half. of the socket 15 that goes to make up the collet or gem-setting.

The two ring halves constructed as de:

scribed, are soldered together, along their.

juxtaposed parallel fiat faces 1 1,,whichthus become entirely "concealed, thereby forming a.r1ng 16 of conventional orsuitable form and, completein every particular. 50 also the two semi-circular moities of the socket or setting are soldered together along their flat parallel mating faces to form a continuous circular setting.

In constructing the ring, I stamp out from a metal plate 17 a flat annulus 18, having an integral flat extension 19 that goes to form one half the setting. The blank is placed between a pair of dies 20, 21 (Fig. 7) of which the lower die 20 constigutes the matrix, while the upper die 21 is at.

The cross section of the matrix, corresponds to the cross section of the ring half to be struck up, it being therefore provided with a rounded face 22, corresponding to the contour 13. So also the matrix is furnished with a depressionadapted to shape one half of the collet, this part of the matrix being not illustrated. When the metal is forced by the flat upper die 21, into the matrix 20 (Fig. 8), a completely shaped ring half 12 will be produced, the upper side 14 of such ring half being fiat, owing to the fiat working face of die 21.

The two ring halves died as described, are soldered together along their fiat faces 14, sidewise of each other, by which opera tion, the two setting halves 15 will become fixed in their proper or opposed positions,

thus forming a complete or continuous setting. This setting is furnished with prongs 23, to form a complete or continuous collet. The ring assembled in the manner described, is polished, which. completes the operation.

In Figs. 9-11, the prong-setting of Fig. 6 is replaced by a box-setting. Here the matrix that shapes the ring'half 24 is formed with the outline of a lace or other pattern, which outline is thus molded into the setting as at 25 Fig. 9. The pattern is then sawed out, and the two ring halves as Well as the two box halves are soldered together, thus forming a complete ring 26 furnished the'top of the box for retaining the gem,

I withan open work pattern 27 in its setting.

Finally, "an annular plate 28 is fitted into With this embodiment therefore, the 100x25 constitutes thesetting 15ofCFigs. 46,while .theprongs23 areo'rnitted; I

"I claim:

I socket half carried thereby and likewise semi-circular in cross section, the inner faces of the two ring halves contacting with each other, and the inner faces of the two socket halves being parallel and likewise contacting with each other, tofform a continuous circular socket, the two, ring halves as well Copies of this 'patentmay be obtained for as the two socket halves being soldered to each other. I a a I I I 2. A finger ring comprising a first annular ring half, a first socket half carried thereby, I

said socket half being semi-circular in cross I section, prongs projecting fromthe socket half, a second annular ring halt, a second socket half carriedgthereby ,and likewise semi-circular in cross section, prongs projecting from the last namedsocket half, the

inner-faces of the tworing halves contacts ing with each other, andthe inner faces of wise contacting with each other to forlna continuous circular socket, the two ring so the two socket halves being parallel and like- I I halves as well as the two socket halves being soldered to each other. a

' JOSEF GRAESTEIN.

five cents each, by addressing the Commissioner of Patentaf Washington, D. C. 

